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Put models side by side on price, context, capabilities, and benchmarks.
Claude Haiku 4.5 is Anthropic's fast, affordable small model in the Claude 4 generation, balancing strong instruction-following and coding ability with low latency. It is designed for high-throughput agentic and chat applications where speed and cost efficiency are priorities.
Ember-1 is Fireworks Research's reasoning model built on Moonshot AI's Kimi K3, retrained (not a new base model) to produce reasoning traces roughly 40% shorter while keeping K3-level quality, with text and image input and a 1M-token context window. Released September 23, 2026 as a research preview, it targets coding, knowledge work, and multi-turn agent workflows where reasoning tokens drive most of the cost and latency.
Benchmarks
Head-to-head scores across reasoning, coding, and agentic indices, plus per-domain rankings.
Intelligence
Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback)Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
